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Lungfishes, an ancient group of freshwater fishes, are found in Africa, Australia, and South America. Their fossils are found on all but one continent. Their geographic distribution is indicative of

A

The lungfishes being dispersed to all continents following the breakup of Pangaea

B

The lungfishes' migratory capacity

C

The lungfishes' ability to adapt to all environments

D

The lungfishes' ability to survive in all climates

E

The lungfishes separately evolving from already existing species on each continent

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